public void UpdateCourses()
{
// Courses c1 = new Courses(Session["IdCourse"].ToString());
string sql = " UPDATE DepartmentCourses SET [Mandatory] = '" + this.Mandatory + "' where [IdCourse]= '" + this.IdCourse + "'";
DBFunctions.ChangTable(sql);
}
public bool DeleteCourse()
{
if (CheckExist())
{
string x = "Delete From [DepartmentCourses] Where IdCourse='" + this.IdCourse + "'";
DBFunctions.ChangTable(x);
return(true);
}
return(false);
}
public bool DeleteCourseForStudent()
{
if (CheckExist())
{
string x = "Delete From [StudentAtCourse] Where Id_Course='" + this.Id_Course + "' and Id_Student='" + this.Id_Student + "'";
DBFunctions.ChangTable(x);
return(true);
}
return(false);
}
public bool DeleteHotel()
{
if (CheckExist())
{
string x = "Delete From [Courses] Where ID='" + this.ID + "'";
DBFunctions.ChangTable(x);
return(true);
}
return(false);
}
public bool DeleteCourseForLecture()
{
if (CheckExist())
{
string x = "Delete From [LectureOfCourse] Where Id_Course='" + this.Id_Course + "' and Id_Lecture='" + this.Id_lecture + "'";
string s = "Update DepartmentCourses SET Lecture='' and LectureName='' where Id_Course='" + this.Id_Course + "'";
DBFunctions.ChangTable(x + s);
return(true);
}
return(false);
}
public bool insertCourseForStudent()
{
if (!CheckExist())
{
string sql = " INSERT INTO [StudentAtCourse] ([Id_Course],[Id_Student])";
string sql2 = "VALUES ('" + this.Id_Course + "','" + this.Id_Student + "')";
DBFunctions.ChangTable(sql + sql2);
return(true);
}
return(false);
}
public bool insertCourse()
{
if (!CheckExist())
{
string sql = " INSERT INTO [Courses] ([ID],[Day],[Hour],[CourseName],[Credits],[Department],[Mandatory],[Year],[Semester])";
string sql2 = "VALUES ('" + this.ID + "','" + this.Day + "','" + this.Hour + "','" + this.CourseName + "','" + this.Credits + "','" + this.Department + "','" + this.Mandatory + "','" + this.Year + "','" + this.Semester + "')";
DBFunctions.ChangTable(sql + sql2);
return(true);
}
return(false);
}
public bool insertCourseForLecture()
{
if (!CheckExist())
{
string sql = " INSERT INTO [LectureOfCourse] ([Id_Course],[Id_Lecture])";
string sql2 = "VALUES ('" + this.Id_Course + "','" + this.Id_lecture + "')";
DBFunctions.ChangTable(sql + sql2);
return(true);
}
return(false);
}
public bool insertCourse()
{
if (!CheckExist())
{
string sql = " INSERT INTO [DepartmentCourses] ([Department],[Year],[Semster],[CourseName],[IdCourse],[Day],[HourStart],[HourEnd],[Credits],[Mandatory],[Lecture],[RegisteredStudents],[MaxStudent],[LectureName])";
string sql2 = "VALUES ('" + this.Department + "','" + this.Year + "','" + this.Semster + "','" + this.CourseName + "','" + this.IdCourse + "','" + this.Day + "','" + this.HourStart + "','" + this.HourEnd + "','" + this.Credits + "','" + this.Mandatory + "','" + this.Lecture + "','" + this.RegisteredStudents + "','" + this.MaxStudent + "','" + this.LectureName + "')";
DBFunctions.ChangTable(sql + sql2);
return(true);
}
return(false);
}
public bool insertImage()
{
if (!checkIfImageExsist())
{
string sql = " INSERT INTO [imges] ([imageName],[image])";
string sql2 = "VALUES ('" + this.imageName + "','" + this.imagel + "')";
DBFunctions.ChangTable(sql + sql2);
return(true);
}
return(false);
}
public bool insertStuttr()
{
if (!checkIfStutterExsist())
{
string sql = " INSERT INTO [Stutter] ([id],[name],[email],[Username],[Password])";
string sql2 = "VALUES ('" + this.id + "','" + this.name + "','" + this.email + "','" + this.Password + "','" + this.Username + "')";
DBFunctions.ChangTable(sql + sql2);
return(true);
}
return(false);
}
public bool deleteStutter()
{
if (checkIfStutterExsist())
{
string sql = "DELETE FROM Stutter WHERE id='" + this.id + "'";
DBFunctions.ChangTable(sql);
return(true);
}
else
{
return(false);
}
}
public bool insertStudent()
{
if (!checkIfStudentExsist())
{
string sql = " INSERT INTO [Students] ([ID],[Name],[LastName],[Year],[semester],[Department])";
string sql2 = "VALUES ('" + this.ID + "','" + this.Name + "','" + this.LastName + "','" + this.Year + "','" + this.semester + "','" + this.Department + "')";
DBFunctions.ChangTable(sql + sql2);
return(true);
}
return(false);
}
//==================== Helper Methods ====================//
public bool IsCanDelete(string tableName, string id)
{
string sqlQuery = $"Select * from [{tableName}] Where id='{id}';";
DataTable dt = DBFunctions.SelectFromTable(sqlQuery);
bool isCanDelete = dt.Rows.Count > 0;
if (isCanDelete)
{
string deleteQuery = $"DELETE FROM [{tableName}] WHERE id='{id}';";
DBFunctions.ChangTable(deleteQuery);
}
return(isCanDelete);
}
public void AddUserForDeleteTest(string tableName, string id)
{
string sqlQuery = $"Select * from [{tableName}] Where id='{id}';";
DataTable dt = DBFunctions.SelectFromTable(sqlQuery);
bool isExist = dt.Rows.Count > 0;
if (isExist)
{
return;
}
string addQuery = $"Insert Into [{tableName}] VALUES('{id}','user','*****@*****.**','user','123');";
DBFunctions.ChangTable(addQuery);
}
//==================== Helper Methods ====================//
public bool IsCanRegister(string tableName, string id, string userName, string password, string name, string email)
{
string sqlQuery = $"Select * from [{tableName}] Where Username='******' or email='{email}' or id='{id}';";
DataTable dt = DBFunctions.SelectFromTable(sqlQuery);
bool isExist = dt.Rows.Count > 0;
if (isExist)
{
return(false);
}
string addQuery = $"Insert Into [{tableName}] VALUES('{id}','{name}','{email}','{userName}','{password}');";
DBFunctions.ChangTable(addQuery);
return(true);
}
public bool IsCanUpdate(string tableName, string id, string userName, string password, string name, string email)
{
string sqlQuery = $"Select * from [{tableName}] Where id='{id}';";
DataTable dt = DBFunctions.SelectFromTable(sqlQuery);
bool isExist = dt.Rows.Count > 0;
if (!isExist)
{
return(false);
}
string addQuery = $"UPDATE [{tableName}] SET name='{name}', email='{email}', Username='******', Password='******' where id='{id}';";
DBFunctions.ChangTable(addQuery);
return(true);
}
public void updateStutter()//تحديث
{
string sq1 = "UPDATE Stutter SET [id]='" + this.id + "',[name]='" + this.name + "',[email]='" + this.email + "' WHERE [id]='" + this.id + "'";
DBFunctions.ChangTable(sq1);
}
public void updateLectureName()
{
string sql = " UPDATE DepartmentCourses SET [LectureName] = '" + this.LectureName + "' where [IdCourse]= '" + this.IdCourse + "'";
DBFunctions.ChangTable(sql);
}
public void updateDeaf()//تحديث
{
string sq1 = "UPDATE Deaf SET [name]='" + this.name + "',[email]='" + this.email + "',[Username]='" + this.Username + "',[Password]='" + this.Password + "' WHERE [id]='" + this.id + "'";
DBFunctions.ChangTable(sq1);
}
public void UpdateRegisteringStud()
{
string sql = "UPDATE DepartmentCourses SET [RegisteredStudents] ='" + this.RegisteredStudents + "' where [IdCourse]= '" + this.IdCourse + "'";
DBFunctions.ChangTable(sql);
}
public void UpdateRegisteringLecture()
{
string sql = "UPDATE DepartmentCourses SET [Lecture] ='" + this.Lecture + "'and [LectureName]='" + this.LectureName + "' where [IdCourse]= '" + this.IdCourse + "' and Department='" + this.Department + "'";
DBFunctions.ChangTable(sql);
}